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inputaxis_group.h

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/*
        $Id: inputaxis_group.h,v 1.1 2001/03/06 15:09:10 mbn Exp $

        ------------------------------------------------------------------------
        ClanLib, the platform independent game SDK.

        This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
        version 2. See COPYING for details.

        For a total list of contributers see CREDITS.

        ------------------------------------------------------------------------
*/


#ifndef header_inputaxis_group
#define header_inputaxis_group

#include "../Input/inputaxis.h"

class CL_InputAxis_Group : public CL_InputAxis
//: CL_InputAxis container class. Groups a set of axes.
{
        std::list<CL_InputAxis*> axes;
public:
        void add(CL_InputAxis *add_axis)
        {
                axes.push_back(add_axis);
        }
        //: Adds a input axis to the group.

        void remove(CL_InputAxis *remove_axis)
        {
                axes.remove(remove_axis);
        }
        //: Removes a input axis from the group.

        virtual float get_pos()
        {
                float pos = 0;

                for (
                        std::list<CL_InputAxis *>::iterator it = axes.begin();
                        it != axes.end();
                        it++)
                {
                        pos += (*it)->get_pos();
                }

                if (pos > 1) pos = 1;
                if (pos < -1) pos = -1;

                return pos;
        }
        //: Returns the current axis position. This is calculated by sumarizing
        //: all the input axes positions and return that value.
};

#endif

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